Cu-AFNR and NQR of the antiferromagnetic and superconducting Bi2Sr2(Ca1−xYx)Cu2O8+y

Cu-NQR spectra in the paramagnetic region of Bi2Sr2(Ca1−xYx)CuO8+y spread over a wide frequency range between 18 and 32MHz, showing the large distribution of the electrical field gradient at Cu sites, reflecting the structural modulation in this system. In the Y-concentrated region, the observation...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 1989-12, Vol.162-164, p.183-184
Main Authors: Kumagai, Ken-ichi, Oashi, Toshiyuki, Nakajima, Haruo, Tomita, Tsukasa, Fujita, Toshizo
Format: Article
Language:English
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Summary:Cu-NQR spectra in the paramagnetic region of Bi2Sr2(Ca1−xYx)CuO8+y spread over a wide frequency range between 18 and 32MHz, showing the large distribution of the electrical field gradient at Cu sites, reflecting the structural modulation in this system. In the Y-concentrated region, the observation of the antiferromagnetic nuclear resonance (ANFR) of Cu nuclei around 60–130MHz indicates that antiferromagnetism of Cu spins is situated near the superconducting phase.
ISSN:0921-4534
1873-2143
DOI:10.1016/0921-4534(89)90978-7